A
Anonymous
Apr 03, 2026
Rating: 4/5
Good Value
Works well but remember you might need external pull-up resistors depending on your microcontroller.
Description
GY-SHT40 SHT41 SHT45 Digital Temperature and Humidity Sensor Module
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Type | I2C |
| Supply Voltage | 1.08V to 3.6V |
| Temperature Range | -40°C to 125°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.1°C |
| Humidity Accuracy | ±1.8% RH |
| Communication Protocol | I2C Fast Mode Plus |
| Board Dimensions | 25mm x 17mm |
| Pin Header Pitch | 2.54mm |
| Module Weight | 3.2g |
5 reviews
A
Anonymous
Apr 02, 2026
Rating: 5/5
Excellent Precision
Used this for a weather station project and the readings are very stable. Easy to connect with Arduino.
A
Anonymous
Mar 25, 2026
Rating: 3/5
Confusing Pins
Documentation could be clearer on the pinout for specific voltage levels. Works once figured out.
A
Anonymous
Mar 10, 2026
Rating: 5/5
Stable Readings
Very stable over time. No drift observed after a week of continuous operation.
A
Anonymous
Feb 01, 2026
Rating: 5/5
Easy to Integrate
Library support is great. Got it up and running in less than 10 minutes.
5 FAQ
Q: Is 5V logic safe for this module?
A: The sensor operates at 1.08V to 3.6V. Please use a level shifter if connecting to 5V logic systems.
Q: What is the difference between SHT40 and SHT45?
A: The main difference lies in the accuracy tiers. SHT45 offers the highest precision among the series.
Q: Which library do you recommend?
A: We recommend the Adafruit SHT4X library for easy integration with most platforms.
Q: Can I use this outdoors?
A: The module itself is not waterproof. You should place it in a breathable enclosure for outdoor use.
Q: What is the default I2C address?
A: The default I2C address is typically 0x44, but it can vary based on specific chip configuration.
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